Home / 20,739,943.40-31,109,915.10-19,480,231.40

Finding the Fourth Proportional to 20,739,943.40, 31,109,915.10 and 19,480,231.40

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Solution

The fourth proportional to 20,739,943.40, 31,109,915.10 and 19,480,231.40 is: 29,220,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,943.40 : 31,109,915.10 = 19,480,231.40 : x
  2. Step 2: Convert to fraction form
    20,739,943.40/31,109,915.10 = 19,480,231.40/x
  3. Step 3: Cross multiply
    20,739,943.40x = 31,109,915.10 × 19,480,231.40
  4. Step 4: Simplify right side
    20,739,943.40x = 606,028,344,982,354.12
  5. Step 5: Solve for x
    x = 606,028,344,982,354.12/20,739,943.40
  6. Step 6: Final answer
    x = 29,220,347.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.